/* styles.v1.css — BurnScope marketing site */

/* ============================================================
   CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Radii */
  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   10px;
  --radius-xl:   14px;
  --radius-2xl:  18px;

  /* Typography */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:  'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* Sizes */
  --nav-height: 64px;
  --max-width:  1140px;
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg:             #1a1b1f;
  --surface:        #22242a;
  --surface-2:      #2a2d35;
  --border:         #2e3138;
  --purple:         #8B5CF6;
  --purple-dim:     #6D4AE8;
  --orange:         #F97316;
  --red:            #EF4444;
  --green:          #30D158;
  --text-primary:   #F1F5F9;
  --text-secondary: #94A3B8;
  --text-dim:       #64748B;

  --nav-scrolled-bg:        rgba(26, 27, 31, 0.82);
  --shadow-mockup:          0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  --shadow-btn-primary-hover: 0 4px 20px rgba(139, 92, 246, 0.35);
  --pricing-glow:           0 0 20px rgba(139, 92, 246, 0.15), 0 0 60px rgba(139, 92, 246, 0.05);
  --pricing-glow-intense:   0 0 30px rgba(139, 92, 246, 0.3), 0 0 80px rgba(139, 92, 246, 0.1);
  --shadow-feature-hover:   0 0 24px rgba(139, 92, 246, 0.15);
}

/* Light theme */
[data-theme="light"] {
  --bg:             #FFFFFF;
  --surface:        #F8FAFC;
  --surface-2:      #F1F5F9;
  --border:         #E2E8F0;
  --purple:         #7C3AED;
  --purple-dim:     #6D28D9;
  --orange:         #F97316;
  --red:            #EF4444;
  --green:          #30D158;
  --text-primary:   #0F172A;
  --text-secondary: #475569;
  --text-dim:       #94A3B8;

  --nav-scrolled-bg:        rgba(255, 255, 255, 0.82);
  --shadow-mockup:          0 8px 32px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04) inset;
  --shadow-btn-primary-hover: 0 4px 20px rgba(124, 58, 237, 0.25);
  --pricing-glow:           0 0 20px rgba(124, 58, 237, 0.1), 0 0 60px rgba(124, 58, 237, 0.05);
  --pricing-glow-intense:   0 0 30px rgba(124, 58, 237, 0.2), 0 0 80px rgba(124, 58, 237, 0.08);
  --shadow-feature-hover:   0 0 24px rgba(124, 58, 237, 0.15);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-heading {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-3xl);
}

/* Fade-in animation (triggered by IntersectionObserver) */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: var(--nav-scrolled-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1;
}

.nav-logo-text-accent {
  color: var(--purple);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  padding: 10px 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--purple);
  color: #fff;
}

.btn-primary:hover {
  background: var(--purple-dim);
  box-shadow: var(--shadow-btn-primary-hover);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface);
  border-color: var(--text-dim);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  text-align: center;
}

.hero-headline {
  font-size: clamp(36px, 5.5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero-sub {
  font-size: clamp(16px, 2vw, 18px);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.hero-trust {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* Hero mockups */
.hero-visual {
  margin-top: var(--space-3xl);
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
}

/* Shared mockup chrome */
.mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-mockup);
  overflow: hidden;
  text-align: left;
}

/* --- Dashboard mockup --- */
.mockup-dashboard {
  width: 520px;
  max-width: 100%;
}

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px var(--space-md);
  border-bottom: 1px solid var(--border);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-dots span:nth-child(1) { background: #ff5f57; }
.mockup-dots span:nth-child(2) { background: #febc2e; }
.mockup-dots span:nth-child(3) { background: #28c840; }

.mockup-titlebar-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-left: var(--space-sm);
}

.mockup-body {
  display: flex;
  min-height: 340px;
}

.mockup-sidebar {
  width: 190px;
  border-right: 1px solid var(--border);
  padding: var(--space-md) 0;
  flex-shrink: 0;
}

.mockup-sidebar-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 var(--space-md);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.06em;
}

.mockup-sidebar-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px var(--space-md);
  font-size: 12px;
  cursor: default;
  transition: background 0.15s;
}

.mockup-sidebar-item.active {
  background: var(--surface-2);
}

.mockup-sidebar-item .name {
  color: var(--text-primary);
  font-weight: 500;
}

.mockup-sidebar-item .cost {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.mockup-main {
  flex: 1;
  padding: var(--space-lg);
}

.mockup-main-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.mockup-main-subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: var(--space-lg);
}

.mockup-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.mockup-stat-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 2px;
  font-weight: 600;
}

.mockup-stat-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.mockup-stat-detail {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--green);
  margin-top: 2px;
}

.mockup-sessions-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: var(--space-sm);
}

.mockup-session-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-top: 1px solid var(--border);
  font-size: 11px;
}

.mockup-session-row .session-name {
  color: var(--text-secondary);
}

.mockup-session-row .session-cost {
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-weight: 500;
}

/* --- Menu Bar mockup --- */
.mockup-menubar {
  width: 280px;
  max-width: 100%;
}

.mockup-menubar-top {
  padding: var(--space-md);
}

.mockup-menubar-live {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: 6px;
}

.mockup-menubar-live::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.mockup-menubar-duration {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.mockup-menubar-cost {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: var(--space-xs);
}

.mockup-menubar-project {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.mockup-menubar-tokens {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}

.mockup-menubar-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

.mockup-menubar-summary {
  padding: var(--space-md);
}

.mockup-menubar-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 6px;
}

.mockup-menubar-summary-row .label {
  color: var(--text-secondary);
}

.mockup-menubar-summary-row .value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-primary);
  font-weight: 500;
}

.mockup-menubar-actions {
  padding: 0 var(--space-md) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mockup-menubar-action {
  font-size: 12px;
  padding: 6px var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: default;
  transition: background 0.15s;
}

.mockup-menubar-action:hover {
  background: var(--surface-2);
}

.mockup-menubar-action.primary {
  color: var(--purple);
  font-weight: 500;
}

/* ============================================================
   PROBLEM SECTION
   ============================================================ */
.problem {
  padding: var(--space-5xl) 0;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.problem-card-icon {
  font-size: 28px;
  margin-bottom: var(--space-md);
}

.problem-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.problem-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features {
  padding: var(--space-5xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--purple);
  box-shadow: var(--shadow-feature-hover);
}

.feature-card-icon {
  font-size: 28px;
  margin-bottom: var(--space-md);
}

.feature-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.feature-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: var(--red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 20px;
}

.feature-badge--new {
  background: var(--red);
}

/* ============================================================
   ACCOUNT TYPES
   ============================================================ */
.account-types {
  padding: var(--space-5xl) 0;
}

.account-types-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 860px;
  margin: 0 auto;
}

.account-type-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: border-color 0.25s ease;
}

.account-type-card:hover {
  border-color: var(--purple);
}

.account-type-header {
  margin-bottom: var(--space-lg);
}

.account-type-icon {
  font-size: 28px;
  display: block;
  margin-bottom: var(--space-sm);
}

.account-type-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.account-type-plans {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

.account-type-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.account-type-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.account-type-list li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1.6;
}

.account-types-note {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding: var(--space-5xl) 0;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 820px;
  margin: 0 auto var(--space-xl);
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 var(--space-md);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--purple);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--purple);
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.step-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 220px;
  margin: 0 auto;
}

/* Dashed connector line */
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 24px;
  left: calc(50% + 32px);
  width: calc(100% - 64px);
  border-top: 2px dashed var(--border);
}

.step-hint {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  font-style: italic;
  margin-top: 4px;
}

.how-it-works-note {
  text-align: center;
  font-size: 14px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing {
  padding: var(--space-5xl) 0;
}

.pricing-card {
  max-width: 400px;
  margin: 0 auto;
  background: var(--surface);
  border: 2px solid var(--purple);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  position: relative;
  box-shadow: var(--pricing-glow);
  animation: pricing-glow 4s ease-in-out infinite;
}

@keyframes pricing-glow {
  0%, 100% {
    box-shadow: var(--pricing-glow);
  }
  50% {
    box-shadow: var(--pricing-glow-intense);
  }
}

.pricing-card-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.pricing-card-price {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.pricing-card-term {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: var(--space-xl);
}

.pricing-card .btn {
  width: 100%;
  padding: 14px 0;
  font-size: 16px;
  margin-bottom: var(--space-xl);
}

.pricing-features {
  text-align: left;
}

.pricing-features li {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pricing-features li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  padding: var(--space-5xl) 0;
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  padding: var(--space-lg) 0;
  cursor: pointer;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--text-dim);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  content: '−';
}

.faq-answer {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-bottom: var(--space-lg);
}

.pricing-note {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: 13px;
  color: var(--text-dim);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) 0;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand .nav-logo-icon {
  width: 28px;
  height: 28px;
}

.footer-brand .nav-logo-text {
  font-size: 18px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-dim);
}

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
}

.legal-title {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.legal-updated {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: var(--space-3xl);
}

.legal-body {
  max-width: 720px;
}

.legal-body h2 {
  font-size: 18px;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.legal-body ul {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.legal-body li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  list-style: disc;
  padding-left: var(--space-xs);
}

.legal-body code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.legal-link {
  color: var(--purple);
  text-decoration: underline;
  text-decoration-color: var(--purple);
  text-underline-offset: 2px;
  transition: opacity 0.2s;
}

.legal-link:hover {
  opacity: 0.8;
}

/* ============================================================
   THEME TOGGLE
   ============================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.2s;
  padding: 0;
}

.theme-toggle:hover {
  border-color: var(--text-dim);
}

/* Sun icon (shown in dark mode — offers light) */
.theme-toggle-icon {
  display: block;
  width: 18px;
  height: 18px;
  position: relative;
}

/* Sun: visible in dark mode */
.theme-toggle-icon::before {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  border: 2px solid var(--text-secondary);
  background: transparent;
}

.theme-toggle-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 0%, var(--text-secondary) 1.5px, transparent 1.5px),
    radial-gradient(circle at 100% 50%, var(--text-secondary) 1.5px, transparent 1.5px),
    radial-gradient(circle at 50% 100%, var(--text-secondary) 1.5px, transparent 1.5px),
    radial-gradient(circle at 0% 50%, var(--text-secondary) 1.5px, transparent 1.5px);
}

/* Moon: visible in light mode */
[data-theme="light"] .theme-toggle-icon::before {
  inset: 2px;
  border: 2px solid var(--text-secondary);
  box-shadow: 4px -3px 0 -1px var(--surface), 4px -3px 0 0 var(--text-secondary);
  background: transparent;
}

[data-theme="light"] .theme-toggle-icon::after {
  background: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 900px) {
  .problem-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .account-types-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .hero-visual {
    flex-direction: column;
    align-items: center;
  }

  .mockup-dashboard {
    width: 100%;
    max-width: 520px;
  }

  .mockup-menubar {
    width: 100%;
    max-width: 280px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
  }

  .step:not(:last-child)::after {
    display: none;
  }

  .problem,
  .features,
  .account-types,
  .how-it-works,
  .pricing,
  .faq {
    padding: var(--space-4xl) 0;
  }

  .section-heading {
    margin-bottom: var(--space-2xl);
  }
}

/* Mobile */
@media (max-width: 600px) {
  .nav-logo-icon {
    width: 26px;
    height: 26px;
  }

  .nav-logo-text {
    font-size: 17px;
  }

  .nav-links .btn {
    padding: 8px 14px;
    font-size: 13px;
  }

  .problem-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .nav-links a:not(.btn) {
    display: none;
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas .btn {
    width: 100%;
    max-width: 280px;
  }

  .problem,
  .features,
  .account-types,
  .how-it-works,
  .pricing,
  .faq {
    padding: var(--space-3xl) 0;
  }

  .section-heading {
    margin-bottom: var(--space-xl);
  }

  /* Mockup mobile fixes */
  .mockup-body {
    flex-direction: column;
  }

  .mockup-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .mockup-stat-value {
    font-size: 16px;
  }

  .mockup-sidebar-item .name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 120px;
  }

  /* Pricing mobile */
  .pricing-card {
    padding: var(--space-xl) var(--space-lg);
  }

  .pricing-card-price {
    font-size: 44px;
  }

  /* Footer mobile */
  .footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .footer-brand .nav-logo {
    justify-content: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }
}